Monthly Archives: June 2017

Software quality assurance and successful Software Testing

Business models and markets change faster and moving towards digital resources than the applications that support them can be developed, software quality assurance is often first to be cut from the budget or schedule despite the fact that software defects have a direct, negative impact on profitability. Even a small number of defects can have a catastrophic impact on a business, its customers, and its partners. It is estimated that a software defect found and fixed post-production costs 100 times more than if the defect was found in the design or early stage.

Quality assurance and software testing are very important. Quality Assurance testing is employed to reduce possible defects in every stage of the software development life cycle. The 2003 book “Managing Software Engineering Knowledge” states “the focus of [Software Quality Assurance] is to monitor continuously throughout the Software Development Life Cycle to ensure the quality of the delivered products”.

This requires monitoring both the processes and the products. In process assurance, SQA provides management with objective feedback regarding compliance to approved plans, procedures, standards, and analyses. Product assurance activities focus on the changing level of product quality within each phase of the life cycle, such as the requirements, design, code, and test plan. The objective is to identify and eliminate defects throughout the life cycle as early as possible.

5 Most Effective Ways to Go to Successful Mobile Application Tests

Mobile devices are growing popularity on the daily basis. Around 3 million mobile apps are available in the App Store and Google Play and the number still continues to grow. With the sheer number of apps and the ever growing complexity of the mobile ecosystem, creating loyal users for a new app is quite challenging.

In fact, several researches reveal that one of the main reasons why users uninstall apps right after downloading them is because of issues caused by bugs and lack of proper quality assurance. Freezing of the Phone to crashes or quality loss in the battery are few common reasons due to which 50% of them delete the app after installation and 96% write a bad review. As a result, the importance of mobile testing has become increasingly crucial so that the app being delivered is not unstable and buggy.

1. Thinking From User’s Perspective

Putting Google aside for a moment let’s focus on your visitors. Thinking from the user’s perspective is one of the most effective ways for mobile testing. After all, there could be different users using the same mobile for different purposes. For instance, a small businessman may require apps related to his social accounts so that he can sell his products easily while a student would prefer having apps that provide more fun and entertainment. So, as a best mobile app development company if you are clear with your target audience perspective then all the efforts will be made to improve the user experience. Let’s take another example, I am testing an app which is mostly being used by a user who loves music. Which I need to make sure that the user does not find any issues related to the quality of music as well as looking for his favorite song. In addition to this, the playlist created should be saved properly and adding or removing songs should be made easy.

2. Test your target OS platforms and versions

It may sound pretty obvious that your app testing starts with identifying the major OS platforms, be it Android, IOS or windows. But there are times when a hasty testing process might just call for using emulators that stimulate those operating systems. Although, emulators don’t include all features that different devices have. Moreover, some of them may cause the problems for the app. So, make sure to test your app on the operating systems you need to support using the physical devices such as phones and tablets. Now we all are well aware regarding the fact that each operating system has more than one version available in the market. Which means if your mobile app is designed for IOS 8 and later, it is advisable to test for versions 8.0, 8.1, 8.2 and of course on real hardware.

3. Have You Checked The UI On Different Screen Sizes

Designing for all varying screens sizes especially in the Android market can be considered as a big challenge. The app requires performing well with all of them. And if not, then there might be a good chance that a user will uninstall the app on the immediate basis. So what can be done is? Map all the models and test the app on each screen as well as each device. If you have two different models with same screen size then it is not necessary to test UI on both devices. For example, if the app supports bothiPhone 7 and iPhone 7+, testing only one of them will be more than enough.

4. Monitor battery use

A recent study showed that 55% of users have experienced issues with apps that almost drained their phone batteries. As a result, it is very important your app testing procedure includes a look at battery consumption. It may quite interest you to know that IOS all latest versions comes with a feature that lists all the installed apps on the phone and the battery consumption of each of them. While for Android, a tool named Battery Stats Plus is being widely used for discovering how much power an app is using.

5. Do the testing with the full data load

Many times apps put through QA in an app testing environment don’t include the full data load. For example, an app is released in 20 or more countries might be pulling data from 2-3 countries in the test environment. As a result, a missing scrollbar might go unnoticed. And fewer data in a test environment might lead you to believe that the performance is great. But during the production environment, the app might turn out to be more sluggish than expected.

 

The right way to convert a website into an Android app – the optimal way to follow

App availability has substantial pros, moreover that we live in a mobile world, more and more people use tablets and smartphones. So even if you have a website, you should pay your attention to the alternatives of how to convert website to Android app. And we will scrutinize the conversion process step by step.

Steps to convert your website into an Android app
What is the process of conversion? You know, there are several resources that can turn your website into an app even if you are not engaged in programming, but it will never be the same as your website. If you want to have a serious powerful app, only software developers can help you. What do developers need to implement it? They perform the following steps.

1) Website functionality. First specialists should list all website features to understand how the future app should look, what it will perform. It is worth noting that app cannot be exactly the same as a website. A number of features will vary since some features have reason only on the website, as it was noted above.

2) Development cost estimate. Considering a number of features to be integrated, their complexity, sales department can summarize how much the app development will be and how properly make app from website.

3) User story. The project manager is writing the user story for developers. What is this? It is detailed feature list that allows developers to solve many important issues even before they start coding. They are looking for the best options how to implement the required functionality.

4) UI/UX design. The designer creates the optimal user experience for your future app and pleasing interface that will be attractive for you and future users. Color spectrum and color background can be the same as that of a website, but design shall be developed on the basis of mobile platform and particularities of mobile devices. If you don’t know how to make website into an app using special designing patterns, experienced designers will help you.

5) Development process. Here Android developers are applying their high skills. Apart from using Android Studio, integrated development environment for the app development, they need to apply some other technologies for the correct back-end development when you want to convert site to mobile app.

RESTful API
Service that determines feature suite developers can and get feedback. Interaction is performed via HTTP protocol. Widespread use of HTTP protocol is the advantage of such approach. Therefore RESTful API can be used almost from any programming language.

Database development
The database is one or several files intended for storing, changing and processing of large volumes of interrelated information. And developers need to create the new database for the mobile app.

Pagination
It is a tool that divides all content into separate pages. If you see, for example, a number of pages at the bottom of the page, you can choose any page to see what you need. It is what pagination does. It is very convenient tool in news apps.

Important! Summarizing all the above, it is very important to note that communication with database and server is implemented in a different way on the web and mobile app. You should know it when you learn how to make an app from a website.

Besides, mobile app structure also differs from the website – the app can connect directly to the database, whereas in the other scheme server will be communication point between database and app.

In some cases, developers can just take data from your website server for the new app, but only if the server is shaped up for the mobile OS.

Software-based systems can improve more ability to determine the cause of ischemic stroke

Determining the cause of an ischemic stroke — one caused by an interruption of blood supply — is critical to preventing a second stroke and is a primary focus in the evaluation of stroke patients. But despite that importance, physicians have long lacked a robust and objective means of doing so. Now a team of investigators at the Athinoula A. Martinos Center for Biomedical Imaging at the Massachusetts General Hospital (MGH) and the MGH Stroke Service have developed a software package that provides evidence-based, automated support for diagnosing the cause of stroke. Their study validating the package — called Causative Classification of Stroke (CCS) — was published online in JAMA Neurology.

“This was a much-needed study because, although stroke classifications systems are often used in research and clinical practice, these systems are not always able to produce subtypes with discrete pathophysiological, diagnostic and prognostic characteristics,” says Hakan Ay, MD, a vascular neurologist, Martinos Center investigator and senior author of the JAMA Neurology paper. “We found that the CCS-based classifications provided better correlations between clinical and imaging stroke features and were better able to discriminate among stroke outcomes than were two conventional, non-automated classification methods.”

There are more than 150 different possible causes — or etiologies — of ischemic stroke, and approximately half of patients exhibit features suggesting more than one possible cause. This leads to considerable complexity in determining the cause of a stroke and, in roughly one of two patients, can lead to disagreements among physicians about the cause. The CCS software helps to reduce this complexity by exploiting classification criteria that are well defined, replicable and based on evidence rather than subjective assessment.

The CCS software does this in several ways. First, it weights the possible etiologies by considering the relative potential of each to cause a stroke. Second, in the presence of multiple potential causes it incorporates the clinical and imaging features that make one mechanism more probable than others for an individual patient. Third, it determines the likelihood of that cause by taking into account the number of diagnostic tests that were performed. And finally, it ensures that data is entered in a consistent manner. The software can also serve as an important research tool, by providing investigators with both the ability to examine how stroke etiologies interact with one another and the flexibility to define new etiology subtypes according to the needs of the individual research project.

The MGH team previously showed that use of the CCS algorithm reduced the disagreement rate among physicians from 50 percent to approximately 20 percent. The recently publishedJAMA Neurology study further established the utility of the algorithm by demonstrating its ability to generate categories of etiologies with different clinical, imaging and prognostic characteristics for 1,816 ischemic stroke patients enrolled in two previous MGH-based studies. Based on patient data, CCS was able to assign etiologies to 20 to 40 percent of the patients for which two other systems were unable to determine a cause. It also was better at determining the likelihood of second stroke within 90 days.

“The validity data that have emerged from the current study add to the utility of the software-based approach and highlight once again that careful identification and accurate classification of the underlying etiology is paramount for every patient with stroke,” says Ay, who is an associate professor of Radiology at Harvard Medical School. “The information the software provides not only is critical for effective stroke prevention but also could increase the chances for new discoveries by enhancing the statistical power in future studies of etiologic stroke subtypes. We estimate that, compared to conventional systems, the use of CCS in stroke prevention trials testing targeted treatments for a particular etiologic subtype could reduce the required sample size by as much as 30 percent.”

The MGH-licensed CCS is available athttps://ccs.mgh.harvard.edu/ and is free for academic use. The software was designed to be a “living algorithm” and can accommodate new information as it emerges. New etiology-specific biomarkers, genetic markers, imaging markers and clinical features that become available can be incorporated into the existing CCS algorithm to further enhance its ability to determine the underlying causes of stroke.