The structural difference
The Diploma Programme is a single programme with a broad structure. Students take six subjects across groups, typically three at higher level and three at standard level, alongside a core made up of the extended essay, theory of knowledge and CAS.
Cambridge International A Levels are subject qualifications. A student typically studies a small number of subjects in depth, chosen from a wide list, and may take AS Level, the first stage, or the full A Level depending on the subject and the school.
Both are set and revised by their owners, the IB and Cambridge. Their current subject guides and syllabuses are the authority on specifics, so check them before quoting a requirement to a family.
Breadth against depth
The Diploma is broad by design: students continue languages, sciences, mathematics and humanities to the end of school, and the core adds research and reflection. A Levels are specialised: fewer subjects, studied further, which suits a student who already knows their direction.
Neither is inherently harder. The Diploma's difficulty is in the volume and coordination of concurrent demands; an A Level's is in the depth of a smaller number.
| Aspect | IB Diploma and A Levels compared |
|---|---|
| Subjects | Diploma: six subjects across groups plus the core. A Levels: usually three or four chosen subjects. |
| Core requirements | Diploma: extended essay, theory of knowledge and CAS. A Levels: none as a requirement of the qualification. |
| Assessment | Diploma: external examinations plus internal assessments moderated by the IB. A Level: mainly external examinations, with coursework or practical components in some subjects. |
| Grading | Diploma: subject grades combine into a total with a small number of points from the core. A Level: a grade per subject. |
| Flexibility | Diploma: a set structure. A Levels: subject choice and, often, a staged route through AS. |
Assessment and workload for students
Diploma students juggle internal assessments in most subjects, the extended essay, and CAS alongside their examinations. The deadlines cluster and they are set partly by the school, partly by the IB, so coordination is a large share of the job.
A Level students have fewer moving parts and a more predictable calendar, with heavier concentration on the final examinations and, in some subjects, coursework or practicals.
What each means for a school's planning
A Diploma school needs workflows for subject outlines, internal assessments and the core, plus a coordinator's view of who is on track, because a missed internal assessment deadline is a diploma outcome problem and not just a late piece of work.
An A Level school needs strong syllabus and assessment planning by subject, mock examinations, and clear handling of the exam series and entries, which are administered on Cambridge's timetable.
Where skodle fits
This section names our own product, so weigh it accordingly. The comparison above is true whatever software a school runs.
For the Diploma, skodle carries the parts a coordinator has to watch. Internal assessment, the extended essay, theory of knowledge and CAS are tracked as components per student, each with a supervisor, a status, a due date, milestones, drafts and a feedback thread, and the extended essay has its own supervision record. A rule-based risk view flags students who are falling behind. See the IB Engine and the IB school software page.
The limits. skodle does not hold internal assessment marks or criteria, theory of knowledge exhibition fields or Diploma subject outlines as structures of their own, and a predicted grade is only a value a teacher types in; it computes no prediction. It does not carry the official IB route for candidate registration and coursework submission: a readiness flag marks a candidate ready and nothing is submitted. For A Level schools it supports the school structure and the shared assessment, attendance and reporting layers, but a Cambridge syllabus is not modelled the way an MYP unit is, and it does not manage the exam entry process with Cambridge.
Questions to put to your own school
Which route fits your students and your staffing, rather than which is stronger in general?
- How many of your students know their direction at 16, and how many need breadth?
- Can you staff six subjects plus theory of knowledge, CAS and extended essay supervision?
- What do the universities your students apply to ask for, and how do they read each?
- Do you have the coordination capacity for the Diploma's deadlines?
- Which systems will carry the workload, and how well do they know each route?
Running both
Some schools offer both, letting students choose at 16. That doubles the planning surface: two sets of subject guides, two assessment calendars and two reporting conventions inside one sixth form. It is workable, and it is the situation where a system that treats the two routes as one generic course becomes a liability.
How to decide
Decide on students, staffing and destinations, in that order, and let the software follow the decision, not lead it. For the Diploma side of the calendar, the DP coordinator's deadline calendar shows what the year looks like.