Producing a large software system is causing a big problem if it is not assigned and organized to a work-team. A software engineering environment and associated tools must be acquired to support selected methods. Plans must be developed budgets and schedules must be negotiated and agreed upon by stakeholder. To succeed, software managers must perform these activities Planning, Organizing, Staffing, Directing, Controlling, and Integrating. One of the big questions here "Why have you succeeded as a software project manager when others have failed?"
Though new techniques are being continuously developed by researchers, it is very important to first understand the limitations of these techniques. These include, the kind of defect a certain technique can be expected to detect and cost of doing so. It also includes knowing the efficiency and effectiveness of testing when applied on a program, about the subject, the total number of defects detected in the program and type of defects. But the comparison is only not sufficient. It is also necessary to evaluate the checking which will enhance the reliability (Bertolino, 2012).
A. Waterfall model Waterfall model is shown below which starts from requirements and ends at maintenance. Fig1: Waterfall model for testing In this model, testing is carried out after the implementation phase. This makes it often costly as it requires more labor once the defect is found because it is very difficult to go back and change something that was not well-thought out in the concept stage. B. V- model While the V-model says that the testing must be done from the start of the project as it is an essential part of the software maintenance. Fig2: V-model for testing Both the models are used for testing of software and help the developers in the development phase.
Conclusion We can conclude that any software project needs to be executed with a formally defined process. The increased complexities and huge size of the software development projects make them tough to control without formal practices. If the software development process is weak the end product will undoubtedly suffer. Therefore the selection of the right process model is essential in developing a successful product. Also these formally defined development processes are likely to reduce the post-development costs due to early recognition of errors.
If customer has incompetent team or not team, they will end up with consulting company for continued support. Suggestion: • Jump start with a consulting company, and, plan to train the internal team with them, and have a plan to take over projects. C. Continuous Delivery Usually if we want to deploy software more frequently, Unfortunately, we must choose lower levels of stability and reliability in our systems which decreases quality of software. Furthermore, with peer reviewed research we can see that this is not the case high performance teams traditionally deliver services in better quality than their low performing competition. Continuous Delivery has some advantages and disadvantages which are listed
In software development it tends to be inflexible and progress flows in one direction through the phases of conception, initiation, analysis, design, construction, testing, deployment and maintenance. The traditional method sounds much more time consuming compared to the agile system. That is because agile system fails to provide concrete time frames management can work with and give an end date for a finished product. The article by Phillip A. Laplante and Colin J. Neill (2004) called The Demise of the Waterfall Model Is Imminent” and Other Urban Myths describes how traditional methods like the waterfall are still relevant to today’s software development methods. This model of development works best when requirements of the customer are set, stable, and fully evolved before work begins.
5. What are the strengths and drawbacks of alternative forms reliability? The alternative forms of reliability can be an even more costly approach. One of the drawbacks is that the “equality of items” becomes questionable and tha... ... middle of paper ... ...ch questions. I think the most important thing I learned in this assigned is determining the most effective way to evaluate reliability based on the needs of the study and the time available to complete the project.
When a programmer has "constructively" written a program it is very difficult to change to a "critical" perspective and... ... middle of paper ... ...ng. A Myth is a widely held but false notion. Most myths in software testing relate that testing is expensive and time consuming, when it is appropriate to test and who can test programs and what the outcomes of testing should be. Testing a program early saves both time and costs, bugs are found quicker and it takes longer to fix bugs than to test and find them and it is more efficient to test a program during its development. Testers are incorrectly perceived to be responsible for the quality of a product, that defects within a program are the fault of testers and a that tested program will be bug free while conversely another testing myth is that anyone can test a software program and being only responsible for finding bugs.
Software has merged into many diverse fields, and is becoming more complex. Changing requirements from customers is making it even more difficult. Old software development approaches are not able to satisfy the new requirements of the market in the best way, anymore. As a result, new software development approaches are evolved, as agile methodologies, mainly to solve such problem. The new methodologies include modifications to software development processes, to make them more productive and flexible.
The greatest risk in software development is the customer. Customers generally do not have a concrete understanding of what they want and how to define requirements. This can lead to efficiency killing changes and potential project collapses when employing outdated development methodologies. I believe that now is the time to transition to a more agile development process so that as a company, we may overcome development risks and increase time and resource efficiency. I understand that the proposal for sweeping changes comes with trepidation, so I will briefly outline the methods to be implemented, how they compare to other methods and the benefits of making the switch.