We are trying to reduce the amount of assessment to make everyone's life easier. In my module "G54SIM: Simulation for Decision Support" which I teach in the School of Computer Science we currently have a shared assessment model: 40% coursework and 60% exam. You can find examples of these assessments on the module website.
http://www.cs.nott.ac.uk/~pos/g54sim/2012-2013/index.html
I am now in the process of planning the assessment for the next semester. But I am not sure how I should design the assessment. I need to be sure that I am assessing the student's abilities and not the ability of other students ;-). I need to make sure that I reduce the amount of overall assessment and don't increase the amount of coursework assessment too much. Also I motivate the students during labs (we have 10 two hour labs) to work in small groups as conceptual problems can be solved much quicker this way and students learn interacting with clients and expressing their thoughts.
I am now thinking of having a group coursework (25%) early in the semester and an individual coursework (75%) late in the semester. Part of the individual coursework assessment would be a 10 minute oral exam to ensure students did the work themselves. I was told that telling the students in advance that they will be orally examined would prevent plagiarism.
The big question is: Am I reducing the assessment (amount of work for students and lecturers) in this way or am I just changing the format of assessment? What do you think?
Can you please share your experience of coursework only assessment in computer science or related fields?
Can you point out literature that discusses this topic?