Start Here
New to monitoring and evaluation, or new to MEStudio? This is the 5-minute orientation: how the library is organized, what the terminology means, and where to go based on what you're working on today.
MEL vs M&E vs MEAL: the terminology
You will see these acronyms used interchangeably in job titles, donor templates, and practitioner conversations. The differences matter, but not as much as people sometimes pretend.
- M&E (Monitoring & Evaluation): The foundation. Monitoring is ongoing tracking during implementation; evaluation is periodic judgment of whether the program worked.
- MEL (Monitoring, Evaluation & Learning): Adds Learning as a formal function. USAID and most INGOs use this framing. Learning is the loop that feeds findings back into program decisions.
- MEAL (Monitoring, Evaluation, Accountability & Learning): Adds Accountability, usually framed as accountability to affected populations. Common in humanitarian work where feedback mechanisms and safeguarding are front-of-mind.
If you're just getting started, think M&E. If your organization uses MEL or MEAL, the additional letters mainly shape how you report and what you have to document, not the underlying craft. The full comparison is in MEL vs M&E vs MEAL vs MLE.
The 6 topic hubs
The M&E Library is organized around six hubs that cover the practitioner workflow from framework design through analysis and use. Pick the one that matches what you are doing this week.
Evaluation
Design, commission, and manage evaluations
Design
Theories of change, logframes, MEL plans, proposals, and design artifacts
Data Collection & Quality
Methods, tools, DQAs, cleaning, and validation for field data
Indicators
Select, design, track, and report on indicators
Sampling
Sample size, sampling methods, design effect, and common mistakes
Analysis
Quantitative and qualitative analysis, coding, statistics, and mixed methods
Shortcuts by situation
Writing a proposal or concept note
Start with How to Write the M&E Section of a Proposal then review budget allocation.
Building your results framework
Start with Logframe vs Theory of Change and then the Logic Model Builder.
Planning a baseline or endline survey
See Baseline vs Endline vs Midline, then how to choose your sample size.
Writing a donor report
Commissioning an evaluation
Start with How to Write Evaluation Terms of Reference and choose a methodology.