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Showing posts from September, 2008

How can World Wide Web sites be tested?

  Web sites are essentially client/server applications - with web servers and 'browser' clients. Consideration should be given to the interactions between html pages, web services, encrypted communications, Internet connections, firewalls, applications that run in web pages (such as java script, flash, other plug-in applications), applications that run on the server side (database interfaces, logging applications, dynamic page generators, asp, etc.). Additionally, there are a wide variety of servers and browsers, various versions of each, small but sometimes significant differences between them, variations in connection speeds, rapidly changing technologies, and multiple standards and protocols. The end result is that testing for web sites can become a major ongoing effort. Other considerations might include: What are the expected loads on the server (e.g., number of hits per unit time?), and what kind of performance is required under such loads (such as web server response tim...

FAQ

What if the software is so buggy it can not really be tested at all? The best bet in this situation is for the testers to go through the process of reporting whatever bugs or blocking-type problems initially show up, with the focus being on critical bugs. Since this type of problem can severely affect schedules, and indicates deeper problems in the software development process (such as insufficient unit testing or insufficient integration testing, poor design, improper build or release procedures, etc.) managers should be notified, and provided with some documentation as evidence of the problem.   How can it be known when to stop testing? This can be difficult to determine. Most modern software applications are so complex, and run in such an interdependent environment, that complete testing can never be done. Common factors in deciding when to stop are: Deadlines (release deadlines, testing deadlines, etc.) Test cases completed with certain percentage passed Test budget depleted Covera...

What should be done after a bug is found?

The bug needs to be communicated and assigned to developers that can fix it. After the problem is resolved, fixes should be re-tested, and determinations made regarding requirements for regression testing to check that fixes didn't create problems elsewhere. If a problem-tracking system is in place, it should encapsulate these processes. A variety of commercial problem-tracking/management software tools are available. The following are items to consider in the tracking process: Complete information such that developers can understand the bug, get an idea of its severity, and reproduce it if necessary. Bug identifier (number, ID, etc.) Current bug status (e.g., 'Released for Retest', 'New', etc.) The application name or identifier and version The function, module, feature, object, screen, etc. where the bug occurred Environment specifics, system, platform, relevant hardware specifics Test case name/number/identifier One-line bug description Full bug description Descr...

What is a Test Plan and Test Case?

What's a 'test plan'? A software project test plan is a document that describes the objectives, scope, approach, and focus of a software testing effort. The process of preparing a test plan is a useful way to think through the efforts needed to validate the acceptability of a software product. The completed document will help people outside the test group understand the 'why' and 'how' of product validation. It should be thorough enough to be useful but not so thorough that no one outside the test group will read it. The following are some of the items that might be included in a test plan, depending on the particular project: Title Identification of software including version/release numbers Revision history of document including authors, dates, approvals Table of Contents Purpose of document, intended audience Objective of testing effort Software product overview Relevant related document list, such as requirements, design documents, other test plans, etc....