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Project Management Life Cycle (PMLC) models are frameworks which guide organizations in the successful management of a project. Two PMLC models that I have experience using and that interest me are the Iterative and Incremental Model and the Waterfall Method. Both approaches help to ensure projects remain on track while also allowing for flexibility throughout their life cycle.

Similarities: The two most notable similarities between these processes is that they both aim to break down a project into smaller, more manageable pieces, as well as require strong communication and collaboration from stakeholders involved in order to achieve success. This allows for an organized approach to effectively manage any issues that may arise during the course of the development cycle. For example, both methods encourage feedback from stakeholders such as project managers, developers or clients at various points throughout the process – providing opportunities for changes or adjustments when necessary. Furthermore, both processes include formalized reviews of progress at certain checkpoints before moving onto subsequent stages; this helps ensure all tasks have been completed according to expectations set forth by those involved in leading/managing it. Additionally, they also provide ways of tracking progress throughout each phase so teams can be aware of how close they are towards completing its final objective(s).

Differences: One significant difference between these two models is how much control each one provides with regards to making changes later on in the lifecycle without risking other parts functionality/integrity within its architecture framework – especially with larger scale projects given their complexities & multiple variables . While Iterative programs allow for easier adjustment by breaking down tasks into smaller blocks which can be quickly evaluated & tested independently , Waterfall’s implementation structure does not facilitate such flexibility due to its linear nature & predetermined parameters; thus requiring more time consuming alterations should something need alteration after a particular stage has been reached rather than making tweaks beforehand like what would be available under an iterative model (Ghassemi et al., 2018). Furthermore , another primary distinction lies within each method’s approach towards risk assessment ; Iterative being more proactive with identifying potential problems early on whereas Waterfall inherently works off assumptions which means risks come up later along as opposed prior where swift action could still be taken if needed.

An example of a project which could utilize Iterative Model is “The Design Process Of A Mobile Application” due to fact it allows for continuous testing/iteration over time based upon user feedback gathered through analytics data gathering system implemented after launch (e-mail questionnaires , surveys etc.) Even though it requires periods breaks between phases no end result comes out until customer satisfaction levels have met expectations . On hand ,Waterfall Method would work best when dealing with software engineering requirements such as creating new operating systems since there aren’t many unknown factors present & designing them isn’t extremely dynamic because instructions provided typically follow rigid pre-established criteria hence why this model tends fit perfectly when looking develop applications involving computing equipment . Therefore waterfall strategy will enable engineers plan ahead what must built properly since starting point already determined unlike mobile app development process stated prior where outcome remains ambiguous until near completion date.(Cao et al., 2019).


Cao, Y., Chen X., Zhang Y., Li Z., Yan S., Liu Q., Yang C., 2019.”A Review On Project Management Life Cycle Models”. International Journal Of Advanced Computer Science And Applications 10 (12): 231-239 Ghassemi M,. Salimi K.. Sadeghi R,. Goodarzi M,. Alimohammadi H,. Bemani Farkhani A,, 2018,”A Comparison Between Traditional Waterfall And Agile Software Development Methods”. International Journal Of Engineering 29(7): 966–973

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