Tag Archives: testing

mobile application testing

The Brief Guide to Testing Mobile Interfaces

Mobile technology and smart devices have already brought massive and significant changes in human behavior, communication, way of thinking and lifestyle. In fact, the boom of apps popularity can be seen in plenty of industries, among which we can easily sort out some noticeable ones such as Media (magazines and newspapers), Travel (maps), Medicine (patient records), Finance (apps for real-time trading), Education (translators and dictionaries) and Social (games and social media platforms). With steady and obvious progress of the sphere, mobile and web apps are definitely going to become more critical for personal, professional and business success and efficiency. So, creating and launching a new application, all sides of its production should test the solutions and environment and well as practical quality of design and development outcome. Extensive practice we have got here in Tubik Studio proves that this is the well-lit way to providing users with positive experience and helpful products.

 

Testing is vital for product quality

 

In our previous article, devoted to the full cycle of creating a mobile application, we have already mentioned the great part of testing in providing high quality products, able to solve problems and improve lives. As it was outlined in general terms, testing is one of the crucial phases of the entire app design and development process: it helps to reveal bugs before the app is brought out to actual users. Practice shows that in the majority of cases, users abandon the app if it has functionality problems, no matter how promising and engaging it seems. Vise versa, even the simplest apps can be successful for commerce, business, advertising and other aims if they work correctly and efficiently, according to target audience’s expectations and solving their problems.

 

Testing doesn’t mean that designers or developers do not provide the upper quality. To set the analogy, the fact that every book, magazine or newspaper issue goes through editor’s eye doesn’t say that journalists or writers are not talented and qualified. Different specialists have different goals and skills in the process to increase general productivity and efficiency, and it works the same way for design and development of mobile apps. Supposing that developers have done a great job and made no mistakes, the task of testing is not only finding errors. Quite the opposite, it helps to understand the quality of the app and find the way to improve via real interactions.

 

Peter Drucker once said “Quality in a service or product is not what you put into it. It is what the client or customer gets out of it.”  In the majority of cases, if users see that anything in the app is broken or it constantly takes large amount of time to load preventing them from quick accomplishment of the task at hand, the risk is really high that they will bounce it and never come back. That’s why testing phase is the hidden hero of mobile app development.

 

Today we are going to concentrate more on perspective of testing mobile apps, as websites testing has its own specific features worth another article. So, let’s review the basic steps and aspects important for effective digital product testing.

 

mobile app testing

 

Start with the type of the app

 

Mobile app testing has plenty of challenges based on multiple factors: there are some compromise decisions testers or developers need to consider and choices they need to make on combinations of different techniques and methods to be used. One of the aspects to think over is the nature of the app itself directly influencing the process and limits of testing. In this perspective, the following basic categories of the apps should be mentioned.

 

Native apps. The apps of this sort are created specifically for one platform, aka operating system of device. They can take full advantage of all the device features such as the camera, the list of contacts, the flashlight, the accelerometer, the compass or others, and are installed via an app store (Google Play, Apple’s App Store, Microsoft store, etc.).

 

Mobile web apps. They are mobile-optimized websites that look and feel like native apps, still they are run by a web browser.

 

Hybrid apps. This type representatives provide the mix of native apps and web apps. Like native apps, they are installed through app stores and can take advantage of the numerous features available on device. As well as web apps, they rely on HTML being rendered in a web browser.

 

Toonie Alarm UI design

 

The type of the app under construction directly influences all creative stages from UX wireframing to final check of all the code. Different operational systems set their own guidelines and recommendations on design solutions and performance, development tools and restrictions.  Neglecting those limitations and rules can bring to fail of submitting the app to open use and turn all the creative process into wasted time and effort.

 

Plan the testing levels

 

Starting actual work over the app, creative and production team needs to consider a testing plan combining different testing levels. Testing is not the process taken as one single stage or action: it is spreaded via different stages. Schematically, this process can develop in vertical and horizontal directions. Vertical dimension is presented with testing levels and usually deals with going deeper to the code and functionality from separate units to whole app, its connection with the server if its needed, and its technical correspondence to the requirements. Horizontal dimension deals with different aspects of app performance and user experience.

 

Taking the testing levels to account, their basis is variety of tests grouped according to the stages when they are used in the development process, or by the level of specificity of the test. The main task of testing levels is to identify missing areas and prevent overlap and repetition between the development phases. Let’s briefly describe the various levels of testing.

 

Unit testing. This testing is commonly done by the developers to make sure that their code is working correctly: they test the sections of code like classes, functions, interfaces, etc.

 

Integration testing. Integration testing is done when particular units are integrated with each other, with the aim to test the behavior and functionality of each unit after integration. This testing level is usually carried out by a software testing engineer. There are a few types of integration testing such as big bang integration testing, top down and bottom up.

 

System testing. Here the name says everything: at this level all the components of the app are tested as a system in order to ensure that the product at the pre-launch stage meets the specified requirements. As the app is almost ready, it can be tested in the environments really close to the actual in which users will get their experience once it is deployed.

 

Acceptance testing. The main objective of this testing level is to evaluate whether the app system complies with the user requirements and whether everything is ready for release.

 

ios-developers-tubik-studio

 

Define the types of testing

 

All aspects of the app usage should be tested. Designers, developers and testers will need to check it across different devices as the points like screen resolution, processors, battery life and memory are different and can significantly affect on the efficiency and performance of the app, functionality, handling and loading time, as well as UX and UI solutions.

 

Among the variety of types, applied to test the mobile app at different stages of its creation, we should definitely mention the following list.

 

Usability testing. It is carried out from the early stages of app creation to verify if the app fulfills the established objectives and tasks getting a good response from users. The primary focus of this testing is on easy and quick use of an app, simple on-boarding and user’s satisfaction with the entire experience. For higher efficiency and productivity of general creative flow, this type of testing should start much earlier than any single line of code will be written, from the first schemes and transitions put into UX wireframes.

 

Installation testing. At the initial stage on installation, the app should add required software to the device automatically. And uninstalling, it should remove all the available content and databases from the device which are used by the app. So, this type of testing checks that the install/uninstall flow goes properly.

 

Functional testing. It is the most basic test for any app to ensure that it is working according to the defined requirements and there are no functions missed in the process of interaction. Functional testing mainly includes finding possible specific bugs of the device or navigation issues of the app. This type of testing should be done at the primary stages of development. In enables developers or testers to check and measure database or network queries with response times, crashes and memory issues.

 

Performance testing. Rather stressful part of any app testing is performance test revealing the omissions which left unnoticed during functional and user interface testing. This testing is required to be done on actual device only so it means the whole app is coded t this stage. This type covers client-side, server and network performance. For example, it checks the performance specifications and behavior of the app under certain conditions such as low battery, bad network coverage, low available memory and etc.

 

Interruption testing. An app may face various interruptions being in active mode, such as incoming calls or network coverage outage and recovery. This kind of testing shows what the app will do in this variety of cases. The common types of interruptions are:

 

  • Incoming and Outgoing calls, SMS or MMS and different notifications
  • Low memory warning
  • Cable insertion or removal
  • Network outage or recovery
  • Media Player on/off
  • The device power cycle, such as low battery notification.

 

Memory testing. This type checks that each app maintains optimized memory usage throughout surfing. As mobile devices have definite limits of available memory, this testing is crucial for the appropriate product functioning.

 

Security testing. It checks vulnerability of the app to hacking, authentication and authorization policies, data security, session management and other security standards. The fundamental objective of security testing is to ensure that the app data and networking security requirements are met according to standards.

 

Tubik Studio iOS development

 

Don’t forget to test design

 

One of the huge mistakes that could be done about testing it planning this part not earlier than the development stage starts. Obviously, the product getting live via code presents wider perspective of testing its actual functionality and performance. Still, we should remember that any digital product is not just code — it is the set on user interactions which should be thought-over and designed thoroughly with target audience in mind. Therefore, testing should take its first steps at the stage of wireframing to check if all the elements take their places, communicate to users, provide them with feedback from the system and what is more, achieve the goals and solve users’ pains.

 

Numerous prototyping tools enable to simplify and speed up the process of testing user interface so that developers obtained the verified version of design not taking major design alterations in the process of development. This is the efficient way to optimize the general creative flow and provide maximum efficient outcome at every stage. Prototyping gets testing sides, be it client, designer or even potential users, closer to real interaction with the concept of the future interface. Prototypes should not be seen as the analogue of the final product as they aren’t those. Their main aim is to check the correctness and appropriateness of the design solutions way before they will be transferred to developers.

 

The most effective point to involve prototyping for testing design is the step between UX wireframing and UI design.  The prototypes on UI stage can also be created for presentation of application general looks rather than for testing and improving its functional features. Still, it crucial that usability should be thoroughly checked first of all at the UX stage, otherwise it will be much harder to change inefficient solution after having accomplished a lot of work on UI and then development.

 

All the numerous aspects of design testing are definitely worth a separate article which will continue this topic in our blog very soon.

 

InVision for UI prototyping tubikstudio

 

Check the code thoroughly

 

When the design is transformed into code, the developers and testers need to make sure that all the quality and performance nuances are considered and included. Pointers in this area are testing on actual devices and simulators. Testing on devices is proceeded on the actual handset where app is installed, run and tested. Testing in simulator applies the software that can accurately imitate a mobile phone.

 

Simulator testing is useful at the primary stages of development as it allows quick and efficient checking the app, but it doesn’t fully measures performance and usability which should have their healthy doze of actual human testing. Still, automated testing got really popular now because it is effective, cheap and quite reliable. iOS Simulator as well as testing tools such as Appium, Frank, Calabash and others are available to support moving the app through the testing process and point out the issues requiring attention.

 

Continuous testing at all stages lays the strong foundation for keeping small bugs from becoming major issues later on. The final testing is conducted on actual devices so that crashes and hangings could be identified. Testing on device is obligatory for every app as it provides developers with actual data on the app behavior in different environments.

 

Test and measure after launch

 

Another mistake that should be avoided is stopping testing after the product is launched. Vise versa: testing will get even more diverse and comprehensive as it will inform the sides maintaining the app viability and efficiency about behavior, problems and preferences of real users. This information is the direct route to product improvements providing users the updates they really need and want.

 

testing digital product

 

Mobile technology is transforming the way of using devices. Smartphones and tablets of all kinds are rapidly becoming the valid method of interaction between consumers and businesses. People use mobile apps to connect socially, find information, order and track goods, book places and set appointments and do hundreds of other operations improving their lives regularly. It is important to build an app with all features and functionality that are required. Without effective testing plan, users are likely to come across unexpected bugs and errors. In the modern world with tough and growing competition in this field, the risk is high that they will quickly lose interest to the app while thoughtful testing and analysis is the solid way to avoid this risk.

 

Recommended reading

 

Diverse issues of applying testing at different stages of creating digital products have been an object of professionals’ attention lately. Here is the collection of recommended sources on further reading for those who would like to read more on the theme.

 

Testing Strategies and Tactics for Mobile Applications

 

Mobile: Native Apps, Web Apps, and Hybrid Apps

 

Beginner’s Guide to Mobile Application Testing

 

Mobile Testing: Complete Guide to Test your Mobile Apps

 

17 Strategies for End to End Mobile Testing on both iOS and Android

 

Levels Of Testing

 

Software Testing Levels

 


Welcome to read The Ultimate Guide to Creating a Mobile Application

toonie alarm time picker

The Ultimate Guide to Creating a Mobile Application

Most modern people would find it difficult to imagine their day using the smartphone «just for calls». Most mobile devices jumped far beyond the primary goal behind them — making phone calls and sending simple instant messages. Today even quite a simple mobile presents a platform to house various applications for everyday use that turns thousands of people into grateful users of more and more apps. Simple or complex, informative or entertaining, minimalist or packed with bright and catchy details, practical or joyful, meeting the user needing them, they make life better. The variety of apps available today enables users to do the great variety of things using their mobile phone only. Setting an alarm for tomorrow, calculating expenses for the next week or sending mum a selfie via messenger app, vast majority of users don’t even imagine how many people stand behind these simple everyday operations.

 

Earlier in our articles we have already unveiled the typical steps of creating interface design for mobile applications. Today let’s go further and set the full path of creation for a mobile app, from setting the idea to its release in App Store.

 

As well as in any creative process, making a mobile application out of the thin air is a sophisticated process which has its individual peculiarities and features in every particular case. Still, on the basis of Tubik Studio extensive experience of creating diverse applications, it is possible to define several typical creative stages for this process, such as the following:

 

— setting the task and initial scope of works

— estimation

— user/market research

— UX wireframing

— prototyping

— UI design

— animation

— software architecture planning

— iOS development

— testing

— release

— updates.

 

Although you see the sequence of stages, it doesn’t mean that every further phase starts only when the previous one is completed. It’s impossible to imagine this kind of linear dependence as many processes and stages are interconnected even not being consequent in the presented list. Moreover, some of them like testing or estimation come up here and there being spread for all the process of app creation.  Now let’s go along this way step by step to see how a subtle idea becomes a real mobile app.

 

tubikstudio app ui design

 

Setting the task and initial scope of works

 

As we have already mentioned in the article considering logo design stages, the point of setting the task is the foundation of all the design and then development process. At this point the team of designers and developers should obtain maximum information from the client to mark the right way to the goal. The one who walks without a destination in mind, will possibly come nowhere. In product design it works the same way: to get the result, you should clearly set the goals from the very start of the path. It doesn’t mean that the goals should stay totally the same at the end of the journey: the proper level of flexibility has to be set as the objectives can modify more or less in the creative process, research and testing. Still, if the general goals are not set at the start, the creative process can get easily transformed in a mess.

 

Another vital tip, which we have seen through long practice, is that communicating with clients you should get not only their wishes but also try to get the ideas and reasons behind these wishes. If you understand why your customer wants to see particular colors, shapes or transitions, it will be easier for you (if necessary) to justify other methods of realization for these ideas which would give the result desired by the customer and at the same time user-friendly and thoughtfully consuming resources or enabling interactions.

 

The more information you get from the client, the better it is for setting the right direction. Design briefs, calls and Skype-conferences, chat in Slack, brainstorming sessions, mood-boards can all form the good starting line for productive work. In our case, this point of journey is started by sales managers and business analysts who take over the first line of communication with clients and are experienced on setting the bridge between the customer and creative team.

 

tubik studio clients service

Tubik Studio Head of Operations Kate uses all the means to communicate with clients and get into projects

 

At this stage, it is highly advisable to get the data about:

  • the nature of the product and its USP
  • the target audience
  • geographical targeting (if available)
  • the keywords with which the company represents its identity
  • preferred structure and functions clients see as vital in the app
  • preferred visual features (color palette, general style, special features, connection with other already existing digital products or brand strategy etc.)
  • potential technologies, devices and surfaces at which the app will be used
  • need of consistency with existing corporate identity (if available)
  • nature of data processing, need of server side and additional technologies
  • specific preferences

 

Obviously, the list is not completely full, still it contains the most important positions needed for setting a general design and development flow. The outcome of this stage is the diverse set of information blocks establishing the basis for further estimation of the project, planning logical milestones and sprints as well as working our efficient design and development solutions.

 

Estimation

 

The data collected at the previous stage enables business analysts and sales managers to provide the client with the first-level estimation of the time needed for the project and therefore the planned costs. As in any creative process, it is practically impossible to make one totally exact estimation which will stay the same during the whole project: this is the the data which should be got back to and reviewed after every stage of design process. Certainly, there can be some cases of products that are quite simple, have clear structure and do not include many screens or elements, so estimation will be quite exact from the very first stages of processing client’s data and wishes. However, the more complex is the project, the highers are the chances of estimation reviews and adjustments. One more vital thing to mention: this reviews do not necessarily mean growing pricing or timing, as in the creative process designers and developers can find the ways of optimization for design and technology solutions which can even shorten the initial estimation.

 

This flow is close to perfect in cases of full-stack teams: it means that business analyst can involve designers and developers into the assessment process from the earliest steps of analysis and estimation which is able to provide more real and exact planning of time and costs. Furthermore, specialists participating in discussion are able to contribute a lot of knowledge and experience on technical details and factors influencing time and resources needed for the app design and development.

 

Design Studio Tubik

 

User/market research

 

This is the stage when being based on the established task and aims, UI/UX designer starts the path with getting deeper into the environment in which the future application will function. The research stage usually moves on in two directions simultaneously: user research and market research.

 

User research means getting deeper into details of core target audience to understand their preferences and psychological peculiarities, the influence of different factors like colors, stylistic decisions and logic of interaction on emotions and experience of the defined group, the sources of information and creative performance ways which could engage users and make them active. Marketing research means exploring the market segment, primarily in the perspective of creative solutions used by competitors. Visual design presumes creating original and recognizable style that will make the product stand out of the crowd and draw potential customer’s attention.

 

Famous guru of advertising David Ogilvy emphasized the great importance of research for creating effective result: «Advertising people who ignore research are as dangerous as generals who ignore decodes of enemy signals.» Time has changed the means, goals and technologies, still vital role of research established even stronger. Neglecting the research stage and relying only on their creative intuition, experience and talent, designers risk failing this task as they will not know the conditions of the app functioning and will not be able to make it efficient, user-friendly and original.

 

tubik studio UI designers

 

UX Wireframing

 

It is the process of creating general structure of the designed application or website. It’s usually accomplished via the set of schematic screens or pages of low or middle level of fidelity. The aim of this stage is setting clear and orderly structure of all the layout, transitions and interactions on the basis of user’s problems and pains which the product is going to solve.

 

In one of our previous articles we provided a bit of metaphor on that. When we think about building the house, for example, we usually mean the process of physical appearance of the construction rather than tons of projects, drawings and calculations made on paper. And yes, physically it’s possible to build the house without any project as well as it’s possible to create the interface out of thin air. However, in this case you shouldn’t be surprised if one day the house will crack and collapse without any visible reasons as well as the app looking amazing and stylish won’t bring you any loyal users. If you want to have a reliable house, a durable mechanism, a powerful application or a highly-functional website, the recipe is the same – take your time for thorough planning and projecting. This is not going to waste your time, vise versa, it will save your time you would otherwise have to spend on redesign and attempts to find out why your product doesn’t work properly.

 

That is the aim of UX part of design process. UX wireframing stage should be heavily based on user research, competition research and analysis of all the data obtained. In the outcome, it creates the clear scheme whose complexity depends on the product functionality and reflects all the system of transitions and interactions as well as placement of all the elements of the interface based on their optimal use flow. In some cases, wireframing done in pencil sketching or rough drafts is enough, although preferably it is accomplished with the special tools and software optimizing design process and increasing performance.

 

tubik studio design process ux

 

Prototyping

 

The original concept behind the term ‘prototype’ is the sample model of the product that gives the ability to test it and see if the solutions and decisions made about the product are efficient. Prototypes should not be seen as the analogue of the final product as they aren’t those. Their main aim is to enable a designer, a customer and a user to check the correctness and appropriateness of the design solutions.

 

The value of prototypes in the sphere of app and webdesign has rocketed for the last few years. Actually, it is easy to explain as even the low-fidelity prototype gets the designer, customer and tester much closer to the looks and functions of the future product than the most elaborate schemes, drawings and wireframes. Certainly, that doesn’t mean that schemes and wireframes could be eliminated from the process as they are essential in the process of creating design solutions. However, when you want to feel their efficiency and check if nothing has been missed in the design process, prototype will be the great help.

 

Considering the fact that a lot of customers see the prototype as something very close to the final version of product design aka “UI in action”, in practice this approach is not effective. Prototyping is much more efficient and useful as the step between UX design and UI design. So, here in Tubik Studio we support the workflow having the sequence «UX – prototype – UI».

 

The prototypes on UI stage can be created for presentation of application general looks rather than for testing and improving its functional features. And this is the trap in which it is easy to get confused. Prototyping all the details on the final stage of UI in most cases is not so reasonable as it could seem. It will be too time-consuming and in this perspective, it would be better to spend the same time on coding a demo-version. Moreover, usability should be thoroughly checked first of all at the UX stage, otherwise it would be much harder to change inefficient solution after having accomplished a lot of work on UI. Certainly, it would be amazing to create prototypes both for UX and UI, but by far not all the designers and customers agree to spend so much time on design tasks and want to test and improve the design much faster and cheaper.

 

invision prototyping tool tubikstudio review

 

UI (User Interface) Design

 

User Interface is actually a finalized interactive field in which the user interacts with the product. It includes all the tools of increasing usability and satisfying target users’ needs and wishes. All the features of visual perception as well sound and tactile feelings influencing the product use and interaction with is should be analyzed and optimized here to the purpose of the app or a website is designed. For example, such aspects as color palette, types and fonts, shapes and forms, illustration and animation and so on and so forth are able to affect the performance of the final product greatly in both positive and negative way.

 

In general terms, the UX research and wireframing stage is about how the website or application works while UI is how it looks. Both these stages include work on successful interactions, but UX deals more with logic, connections and user behavior while UI stage provides visual representation of all the concept. It means that ideally designer should first work on UX part with concentration on layout, making it more powerful, thought-out, clear and easy to use. Without this vital work you highly risk creating pure mess out of the user interface.

 

After the UX part is tested by prototype, agreed upon and the concept of layout, transitions and features are accepted, the designer starts the UI design part. This is the time when a newborn heart and brain of your product is clothed with its skin and bones. Here the product gets its real color scheme, forms and features of the layout details, styles, animated elements and so on.

 

All the UI solutions directly influence the positive or negative user experience, so the processes of UX wireframing and UI design should mutually support each other and follow the same strategy otherwise the efficient solutions of one stage will not work on the other.

 

Tubik Studio

 

Animation

 

Telling about the details and benefits of interface animation used in mobile apps, we mentioned that the most efficient way is to consider this aspect through all the creative stages. However, the high time to apply it in practice is when UI design is basically accomplished and general stylistic concept is agreed upon.

 

Like everything that is put into the interface and process of interaction with it, animation must be a functional element, not just a decor. Considering motion elements while planning user journey around the digital product, designer should deeply analyze its potential for increasing usability, utility and desirability of the product before making a decision to apply it in the layout or transitions. Animation in UI requires thoughtful approach and always needs to have a clear purpose set behind. Advantages and utility of using it in interaction process have to be obvious and outweighing possible disadvantages.

 

tubikstudio ui design

 

After this stage is accomplished, the visual details approved and agreed upon, designers transfer the assets to developers who are going to do the magic of making them alive. Also, this is the good time to review the estimation once again and plan the clear sprints on development on the basis of thought-out design.

 

Software architecture planning

 

A noteworthy detail is that scalability is one of the most important things for a mobile application. Planning of software architecture can take place as a stage parallel to design. This is a complex process: it usually includes a lot of iterations, with a constant feedback loop between design team and development team. The main goal of architecture planning is to create constructive and integral plan for the software architecture of the app (front-end and back-end). At this stage developers decide on the most efficient technical and technological solutions for actual realization of the app and maintaining its operability. The decisions depend on various factors, for example the nature of the product and data it processes, complexity of design solutions, necessity to save data and availability of log-in functionality etc. Back-end development sets the bridge of the app with the web and supports synchronization of data in both directions.

 

iOS development

 

The actual process of coding the app here in Tubik is done in Xcode as the effective and flexible platform with broad functionality for iOS developers. As it is defined on the official website, «Xcode is Apple’s integrated development environment (IDE). You use Xcode to build apps for Apple products, including iPad, iPhone, Apple Watch, Apple TV, and Mac. Xcode provides tools to manage your entire development workflow—from creating your app to testing, optimizing, and submitting it to the App Store.»

 

Xcode only runs on Macs and has everything developers need to build iOS apps. There are no official ways to launch it on a Windows or Linux PC. This means that if somebody wants to develop an iPhone, iPad, Apple Watch, Apple TV and Mac apps but doesn’t have a Mac, he or she will need to buy it.

 

Two basic and most popular programming languages for iOS development are Objective-C and Swift — we considered benefits and drawbacks of each in our earlier post. Since 2014, Swift language has been used by Xcode for coding more often than Objective-C, which is a difficult language for developers to learn and code. Still, Objective-C is a good fit for early iPhone hardware which has less RAM and slower processes and it is also effectively applicable for maintaining and updating the apps initially created in it. Swift keeps step with modern hardware and it is also faster in the process of coding, it is more easy-to-use, shorter and secure. For creating iOS 10 apps, Xcode 8 and the iOS 10 SDK need to be installed, also available from Apple. There are significant changes to the Swift language and the SDK in this version of Xcode.

 

iOS development swift objective-c

 

In this phase of mobile app creation, iOS developers think over the architecture of the app, write the code, integrate functionality to created UI, edit source code, debug and finally export the app to the App Store. Also, writing unit tests and running integration testing are relevant steps in this phase. The Interface Builder is one of Xcode features and it is alternative to hand coding the client-side part, allowing developers to put the app code together visually. This feature allows dragging and dropping different visual controls into the app code. AutoLayout helps to control the app presentation based on the size of the user’s screen. With Storyboard, developers can see what each screen of the app actually looks like, while Preview Mode delivers a prior acquaintance of what the app will look like when it is done.

 

Lots of mobile app developers are of opinion that a text editor is generally necessary, even though it is theoretically possible to do the entire coding inside Xcode. Handling long and complex codes can become particularly confusing, unless programmers use a text editor that supports all relevant programming syntaxes.

 

ios development tubik swift objective-c

 
In most cases, while part of developers team is building client-side part, the other part are coding, integrating and linking to the front-end server-side components of an app such as database, APIs, middleware and etc.

 

It also should be noted that planning the workflow and the number of people involved into the development process depends first of all on the complexity and urgency of the project. For small projects, one iOS developer may be able to create all components of software architecture for the app. For multilayered complex projects, at least a couple of programmers should be engaged, having experience in software architecture and good expertise in both client-side and server-side development.

 

The main task of this phase is to make a fully working app which is scalable and integrated to all required server-side components like a database, APIs, and other related infrastructure it needs to run. If clients aren’t ready to build the original server-side infrastructure, they can buy a Backend as a Service (BaaS) software bundle or other products. The bundles include a variety of storage options and features, but they aren’t completely “turn-key” as well as they  often do not provide the options of deep and comprehensive analytics. It means the client needs a developer who understands back-end engineering to integrate it into the app.

 

web development

 

Testing

 

“Quality is never an accident; it is always the result of intelligent effort”, John Ruskin once said and it’s definitely true when it comes to a digital product testing.

 

Testing is one of the crucial phases of the entire app design and development lifecycle, it can help to find bugs before the app is brought out to actual users. App Store will not accept any apps that have compiling errors and bugs, so the mobile app being prepared to submitting has no chances with those kinds of issues. In the majority of cases, users abandon the app if it has functionality problems, no matter how promising and engaging it seems. Even the simplest apps can be successful for commerce, business, advertising and other aims if they work correctly and efficiently, according to target audience’s expectations and solving their problems .

 

Testing doesn’t mean that developers do not provide the upper quality. To set the analogy, the fact that every book, magazine or newspaper issue goes through editor’s eye doesn’t say that journalists or writers are not talented and qualified. Different specialists have different goals and skills in the process to increase general productivity and efficiency, and it works the same way for design and development of mobile apps. Supposing that developers have done a great job and made no mistakes, the task of testing is not only finding errors. Quite the opposite, it helps to understand the quality of the app and find the way to improve via real interactions.

 

mobile app testing

 

Automated testing got really popular now because it is effective, cheap and reliable. iOS Simulator and other testing tools such as Appium, Frank, Calabash and others are available to help to run the app through the testing process and point out the issues requiring attention. Continuous testing at all stages helps to keep small bugs from becoming major issues later on.

 

In the process of testing, developer usually goes all the way through the app on a device or in the iOS Simulator of Xcode, screen by screen, to ensure there are no bugs or errors and everything works properly. Fixing or debugging can be done right in Xcode.

 

All aspects of the app should be tested. Developers will need to check it across different devices (iPhone, iWatch, iPad, iPod, etc.) as the points like screen resolution, processors, battery life and memory will be different and can significantly affect how the app runs. They also test functionality (Do all the functions work well?), handling and loading time (Will it slow down if traffic increases?), and UX (How easy is it to use?). In addition to above-mentioned issues, developers review crash reports to see what should be fixed.

 

tubik studio developers testing

 
Here are some types of testing applied in the process of mobile app creation:
 

Functional testing. It is the most basic test for any application to ensure that it is working according to the defined requirements and there are no functions missed in the process of interaction.

 

Performance testing. This type covers client application performance, server performance and network performance. For example, it checks the performance specifications and behavior of the app under certain conditions such as low battery, bad network coverage, low available memory and etc.

 

Memory testing. This type checks that each application maintains optimized memory usage throughout the user surfing.

 

Interruption testing. An app may face various interruptions while working, such as incoming calls or network coverage outage and recovery. This kind of testing shows what will the app do under these conditions. The common types of interruptions are:

 

  • Incoming and Outgoing calls, SMS or MMS and different notifications;
  • Low memory warning
  • Cable insertion or removal
  • Network outage or recovery
  • Media Player on/off
  • The device power cycle, such as low battery notification etc.

 
Security testing. It checks vulnerability of the app to hacking, authentication and authorization policies, data security, session management and other security standards.

 

Usability testing. It is carried out from the early stages of app creation to verify if the app fulfills the established objectives and tasks getting a good response from users. As Joyce Lee, the representative of Human Factors Design at Apple mentions: «Usability answers the question, “Can the user accomplish their goal?»

 

Submitting / Release

 

Finally, there comes the day when the app is alive and ready to be introduced to its users. In order to be submitted to the App Store, it needs to join the iOS developer program. Apple reserves the right to review and approve the app before it can go live. In any case, it is advisable to plan around a week or so to have the information reviewed and approved by Apple. If the app will be used for commercial purposes, additional step to submission via filling in short surveys will be included in the process and will need the separate approval which is usually expected within a day. Process of  the app release in the App Store takes a few steps, including configuring the code, creating a profile, creating a listing, then submitting it through Xcode for certification. It might involve a few fixes and re-submissions, so it is helpful for iOS developer to know the ways and what to expect.

 

As you can see, the way, which a mobile application goes through, is quite complex and includes variety of steps ensuring its functionality, beauty and quality of performance. Don’t miss our next articles that will provide deeper insights into each of the stages as well as tools and tips for better design and development process.


 

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