Not every software testing project can or should be automated. Before your department accepts a new test automation project, you should establish a process by which projects are reviewed and either accepted or rejected. This can be done with a simple Test Automation Acceptance Checklist.
Repeatable Test Cases with Static Data
The true cost benefit of test automation is achieved only when the same scripts are executed multiple times. The first execution is very expensive because it includes the one-time cost of the automation tools and 100% of the Test Automation engineer's time. When the scripts are executed again, the cost of test automation declines sharply. The tool has already been purchased and the scripts have already been coded. If there have been changes in the application, the scripts may require maintenance before being executed. Maintenance on minor software updates should be minimal.
Because test automation is only successful when the scripts can be executed multiple times, only application which require the same test cases to be executed with the same data are good candidates for automation. For example, a mortgage application that needs to be regression tested on a weekly basis could be a good candidate for test automation. Script maintenance is minimal and the scripts can enter a mortgage application using the same group of test data in a fraction of the time it would take a manual tester to test the same functionality.
On the other hand, a mortgage origination system, which cannot use the same test data for each iteration would not be a good automation candidate. Due to the nature of mortgage systems, data could be staged in various states of approval or rejection, based on the current data and the departments who have already processed their part of the mortgage application. If the script cannot easily figure out what data to enter in the software, it is not a good automation candidate.
Another problem with automating this type of complex system is that the test environment often contains a sampling of production data that is refreshed on a periodic basis. Sometimes this can be overcome by rebuilding the test data when the test environment is refreshed. The feasibility of rebuilding test data on a regular basis depends on the complexity of the application. You will have to make that decision on a case-by-case basis.
Application or Environmental Stability
Environmental stability is crucial to a successfully automating a software testing project. Scripts cannot be coded in a timely manner if the application environment is unavailable, experiences frequent down-times, or excessive defects and errors.
Little or No Application or Environment Downtime
It takes longer to write scripts than it does to manually test the same functionality. Most automation tools are watered down version of C or Visual Basic, which means that writing automated scripts is essentially programming and takes adequate time and specialized skills. Unlike manual test cases, which can sometimes be written based off requirements and mock-ups, automated tools require the actual application. When a test environment is unavailable, automation engineers cannot create scripts, which prolongs the project and ends up costing more.
Excessive downtime can consist of any of the following:
Unstable Environment
Lack of Infrastructure Support
Frequent Application Updates
Buggy Code
Effects of Environment Instability on Script Development and Execution
When an application or environment is unstable, scripting progress is dramatically slowed or stopped altogether. In some cases, it's possible to continue scripting, but this may causes more work at a later date. For example, if you are scripting in buggy code, you may have to script around error messages and the scripts will have to be revised at a later date. Or, you may only be able to create scripts to a certain point and finish them at a later date. To help avoid and decrease environment instability, read the chapter on Service Level Agreements.
Timely Defect Fixes
Application defects do not have to be detrimental to an automated software testing project. When defects are fixed in a timely manner, scripting can continue without significant downtime. When estimating an automated testing project, it's always best to add some buffer time that will accommodate for defect reporting and revisions.
When defect fixes take an excessive amount of time to resolve and are causing the automated software testing project to be delayed, it's time to pull together a meeting. Invite all the major players and discuss the root of the problem and what everyone can to improve the situation. Maybe development is spending too much time trying to reproduce the problem and having your automation team enter better description would help them turn the defect fixes around faster. Maybe you can work together to classify defects and establish reasonable fix times for each classification. For example, a Critical defect needs to be fixed that day while a High defect needs to be fixed with in 24 hours.
Responsive Contact Person
When your team takes on a new automated testing project, you will need a contact person. This person is responsible for making sure you have the business requirements and answering questions about how the application works. This will not be his or her main job, so you will need to make sure he or she is responsive. If you cannot get adequate business requirements, test data, or questions answered, your automation project will not be successful.
Copyright 2004. Danna Henderson. All Rights Reserved.
Danna Henderson has helped many organizations automate their software testing with WinRunner. For information on creating robust, data driven scripts, and successful automated testing, visit winrunner experts.
kitchen deep cleaning Deerfield ..Which Type of Shop Can Rely On A Home Built... Read More
An operating system (abbreviated OS) is essentially the path through... Read More
Microsoft CRM is CRM answer from Microsoft Business Solutions.The whole... Read More
Is Photoshop CS2 worth the upgrade? You bet it is!... Read More
Collaboration SoftwareCollaboration Software, also known as group collaboration software or... Read More
Microsoft Great Plains is one of three Microsoft Business Solutions... Read More
One of the things we can be as certain of... Read More
It would be easy to think, like most people apparently... Read More
Sometimes your PC will start acting strange for no apparent... Read More
Healthcare facilities such as clinics, hospitals, and biomedical laboratories can... Read More
What is Interactive Mapping?Interactive mapping is a visual display medium... Read More
In order to implement VLANs in a network environment, you'll... Read More
What is installation in the language of technology? Installation... Read More
Microsoft CRM is CRM answer from Microsoft and attempt to... Read More
Microsoft Business Solutions Great Plains might be considered as ERP... Read More
Whether you need to close a sale, gather end-user feedback,... Read More
Software Engineering is the Systematic Approach for analysis design implementation... Read More
There are two major WYSIWYG(What You See Is What You... Read More
Now there are Three Steps To Heaven Just listen and... Read More
Looking at all the ads which promise to get rid... Read More
We've all seen the ads on TV for Netzero 3G.... Read More
Microsoft Business Solutions ? Navision is an integrated solution for... Read More
ERP (Enterprise Resource Planning) Overview covers What is ERP, Brief... Read More
In order to meet regulatory and corporate compliance requirements reporting... Read More
All of us know that Microsoft bought former Great Plains... Read More
interior house cleaning Highland Park ..Linux essentials:It's free for download but you have to pay... Read More
Customer Relationship Management (CRM) is a strategy and processes used... Read More
The Windows registry is a huge database that ensures normal... Read More
In the case when you represent mid-size or mid-size-to-large business,... Read More
Once a business idea is selected, it is highly recommended... Read More
IBM Lotus Notes with Domino email server is traditional document... Read More
MSN messenger is a pretty cool invention. I mean I'm... Read More
In our opinion, traditional approach when you select ERP/MRP system... Read More
Cyberspace has opened up a new frontier with exciting possibilities... Read More
In this short FAQ style article we would like to... Read More
Configuring PPP PAP AuthenticationNow we know how the ISDN link... Read More
When it comes to screenplay software each screenwriter needs to... Read More
Microsoft Great Plains - Microsoft Business Solutions accounting and ERP... Read More
Formatting and reinstalling windows 98 is very easy if you... Read More
Microsoft Great Plains ? ERM from Microsoft Business Solutions and... Read More
Microsoft Business Solutions Great Plains is very good fit for... Read More
Buying accounting software is a major investment. It's an important... Read More
Finding the best spyware removers to detect and remove spyware... Read More
We don't think about mainframe software pricing anymore, we just... Read More
At the end of XX century, in the late 1990th... Read More
Programming Help for BeginnersWe write programs to instruct computers. When... Read More
Microsoft Great Plains is main accounting / ERP application... Read More
Are you ready? SQL Server 2005, the next-generation data management... Read More
Every day millions of new web documents emerge on the... Read More
Microsoft Business Solutions products: Great Plains, MS CRM, Navision, Axapta,... Read More
Software |