Activity Sequencing

Correct Answer: Start-Collect Requirements-Preliminary Design-Detailed Design-Construction

According to the situation presented, the project involves a sequence of dependent tasks or phases, also known as a critical path. It is obvious that each task has a predecessor that should be done before it. The correct sequence is: 'Start-Collect Requirements-Preliminary Design-Detailed Design-Construction'. Start the project and collect requirements first because the project's preliminary design phase cannot commence until the project requirements have been gathered. After requirements collection, the preliminary design phase can begin. Once the preliminary design phase is completed, the detailed design phase can start, and only when the detailed design is completed, the construction phase can begin. This sequence ensures a smooth transition from one phase to the next with no interruption. Other answer sequences disregard this vital ordering of activities, hence are incorrect.

Correct Answer: Use Finish-to-Start (FS) relationship with lead time for clinical trials and manufacturing setup, and Start-to-Start (SS) relationship for marketing and regulatory submission.

The best answer for sequencing these activities in a pharmaceutical drug development project is to use Finish-to-Start (FS) relationships with lead time for clinical trials and manufacturing setup, and Start-to-Start (SS) relationship for marketing and regulatory submission. This approach accurately reflects the dependencies and overlaps described in the question: 1. Drug formulation must be complete before preclinical trials (FS relationship) 2. Clinical trials can start when preclinical trials are 80% complete (FS with 80% lead) 3. Manufacturing setup can begin when clinical trials are 50% complete (FS with 50% lead) 4. Regulatory submission occurs after clinical trials are 100% complete and manufacturing setup is 75% complete (FS with partial lag) 5. Marketing can start simultaneously with regulatory submission (SS relationship) This sequencing allows for optimal time management and resource utilization while maintaining necessary quality control and regulatory compliance. The other options are not suitable for this scenario: Starting all activities simultaneously (SS for all) would violate the sequential nature and dependencies of drug development phases. Using strict FS relationships for all activities would unnecessarily extend the project timeline and not utilize the allowed overlaps. Finish-to-Finish (FF) relationships for all activities don't align with the given requirements and would likely lead to inefficiencies and compliance issues.

Correct Answer: Start-Select Topic-Create Half of Content-Start Editing-Finish Content Creation-Finish Editing-Start Printing

The correct sequence of activities is as follows: Start - Select Topic - Create Half of Content - Start Editing - Finish Content Creation - Finish Editing - Start Printing. This is because the project cannot start without a topic. Once the topic is selected, the content creation can start. As mentioned in the question, the editing can only start after half the content is written. This means that the content creation must be at least halfway before editing can begin. Once the editing process has started, the rest of the content can be finished. After all content has been created and the editing process is finished, the book can then be printed. The other sequences are incorrect as they either start the printing too early, start editing before there is enough content, or select the topic after starting content creation, all of which contradict the conditions set in the question.