📚 CCEA AS Computer Science: 2026 Exam Changes & Trends | CCEA AS 计算机：2026 年考试变化与趋势
As the educational landscape evolves, CCEA is updating its AS Computer Science specification for first teaching in 2025 and first examination in 2026. These changes aim to better reflect industry standards, computational thinking, and modern programming practices. This article explores the key modifications, exam structure shifts, and how students can prepare effectively.
随着教育环境的不断变化，CCEA 正在更新其 AS 计算机科学大纲，2025 年开始教授，2026 年首次考试。这些变化旨在更好地反映行业标准、计算思维以及现代编程实践。本文探讨了关键修改、考试结构变动以及学生如何有效备考。
1. Introduction to CCEA AS Computer Science | CCEA AS 计算机科学简介
The CCEA Advanced Subsidiary (AS) Computer Science qualification is a popular choice in Northern Ireland, comprising two mandatory units: AS1 (Approaches to Software Development) and AS2 (Introduction to Object-Oriented Development). AS1 is a 2‑hour written paper worth 60% of AS and 30% of A‑level, while AS2 is a non‑exam assessment (NEA) project worth 40% of AS and 20% of A‑level. Both units form the foundation for A2 studies.
CCEA 高级附属（AS）计算机科学资格在北爱尔兰非常受欢迎，包含两个必修单元：AS1（软件开发方法）和 AS2（面向对象开发入门）。AS1 是 2 小时的笔试，占 AS 成绩的 60% 和 A‑level 的 30%，而 AS2 是非考试评估（NEA）项目，占 AS 的 40% 和 A‑level 的 20%。这两个单元构成了 A2 学习的基础。
2. Specification Update for 2026 | 2026 年大纲更新
CCEA has released a revised specification for first teaching from September 2025, with the first AS exams in summer 2026. The core content remains largely similar, but there is a sharper focus on contemporary programming environments, data ethics, and agile methodologies. Some outdated content, such as detailed references to legacy software development models, has been streamlined.
CCEA 已发布了修订版大纲，从 2025 年 9 月开始首次教学，2026 年夏季进行首次 AS 考试。核心内容大致保持不变，但更加聚焦于当代编程环境、数据伦理和敏捷方法。一些过时内容（例如对遗留软件开发模型的详细引用）已被精简。
The updated specification also aligns with the latest National Curriculum requirements for Key Stage 5 computing, emphasising problem‑solving and system design over mere syntax recall. Teachers are advised to incorporate more project‑based learning in preparation for AS2.
更新后的大纲也与最新的国家课程中第五学段计算的要求保持一致，强调问题解决和系统设计，而非单纯的语法记忆。建议教师在教学中融入更多基于项目的学习，为 AS2 做准备。
3. Narrowing of Programming Language Choices | 编程语言选项的缩减
One of the most noticeable changes for 2026 is the reduced list of approved programming languages for the AS2 NEA. Previously, centres could choose from a wide range including VB.NET, Pascal, Delphi, Java, C#, and Python. From 2026, CCEA has narrowed the options to just Python and C#.
2026 年最显著的变化之一是 AS2 NEA 允许使用的编程语言列表减少。过去，中心可以从广泛的选项中选择，包括 VB.NET、Pascal、Delphi、Java、C# 和 Python。从 2026 年起，CCEA 将选项缩减为仅 Python 和 C# 两种。
This change addresses consistency concerns raised by examiners, as Python and C# both offer strong object‑oriented features and are widely used in the industry. Students must now develop their projects using one of these two languages, so early familiarity with their syntax and standard libraries is essential.
这一变化解决了考官提出的一致性问题，因为 Python 和 C# 都提供了强大的面向对象特性，并在业界广泛使用。学生现在必须使用这两种语言之一来开发项目，因此尽早熟悉它们的语法和标准库至关重要。
4. Revised Assessment Objectives | 修订后的评估目标
CCEA has refined the assessment objectives (AOs) to place greater weight on application and evaluation. The new weighting for AS1 is: AO1 (Knowledge and Understanding) – 30%, AO2 (Application) – 40%, AO3 (Analysis and Evaluation) – 30%. Previously, AO1 carried a higher proportion.
CCEA 细化了评估目标（AO），赋予应用与评估更大的权重。AS1 的新权重为：AO1（知识与理解）– 30%，AO2（应用）– 40%，AO3（分析与评估）– 30%。此前 AO1 的占比更高。
This shift means that in the written paper, more marks are allocated to interpreting unfamiliar code, evaluating algorithms, and justifying design decisions. Rote learning of definitions will be less rewarded than before.
这一转变意味着在笔试中，更多的分数将分配给解读陌生代码、评估算法以及论证设计决策。死记硬背定义获得的分值将比以前更少。
5. AS1 Written Exam – New Question Styles | AS1 笔试 – 新题型
The 2026 AS1 paper will continue to consist of a mix of short‑answer and extended‑response questions, but students can expect some fresh question formats. Sample assessment materials indicate the inclusion of 'code comprehension' passages where candidates read a snippet of code and answer analytical questions.
2026 年的 AS1 试卷仍将由短答题和扩展回答题混合组成，但学生可以预期一些新的题型。样本评估材料显示，将包含“代码理解”段落，考生需阅读一段代码并回答分析性问题。
Additionally, there will be 'modify and extend' tasks, where students must write pseudocode or Python/C#‑like statements to add a feature to an existing algorithm. The use of trace tables to debug logic errors is also increasingly tested.
此外，还会出现“修改与扩展”任务，要求学生编写伪代码或类似 Python/C# 的语句，为现有算法添加功能。使用跟踪表来调试逻辑错误也越来越多地被考查。
To accommodate these changes, the paper's timing remains 2 hours, but the mark allocation has been slightly restructured. Section A is now worth 40 marks with 12–15 short questions, while Section B carries 60 marks across 3–4 longer scenario‑based questions.
为了适应这些变化，考试时间仍为 2 小时，但分值分配略有调整。A 部分现在占 40 分，包含 12–15 道短问题；B 部分则为 60 分，包含 3–4 道基于情境的较长问题。
6. AS2 NEA – Enhanced Project Requirements | AS2 非考试评估 – 增强的项目要求
The AS2 project remains an independent programming task, but the 2026 specification introduces stricter evidential requirements. Students must now submit a version‑controlled project log, showing incremental commits. Popular platforms such as GitHub or the centre's own Git server can be used.
AS2 项目依然是一个独立的编程任务，但 2026 年大纲引入了更严格的证据要求。学生现在必须提交版本控制的项目日志，展示增量提交。可以使用如 GitHub 或本校 Git 服务器等流行平台。
The project must explicitly demonstrate object‑oriented analysis, design, implementation, and testing. CCEA expects to see UML class diagrams and structured test plans within the documentation. The marking criteria now reward robust error handling and code commenting more explicitly.
项目必须明确展示面向对象的分析、设计、实现和测试。CCEA 期望在文档中看到 UML 类图和结构化的测试计划。评分标准现在更明确地奖励健壮的错误处理和代码注释。
Furthermore, the word count for the accompanying report has been adjusted to 1500–2000 words, focusing on justification of design choices rather than lengthy descriptions.
此外，附带报告的词数已调整至 1500–2000 词，重点在于设计选择的论证，而非冗长的描述。
7. Greater Emphasis on Computational Thinking | 更加强调计算思维
Computational thinking threads through the entire updated curriculum. Abstraction, decomposition, pattern recognition, and algorithmic design are now explicitly woven into each topic, from data representation to programming paradigms. In the AS1 exam, candidates will encounter questions that require them to abstract information from a problem scenario and design a solution outline.
计算思维贯穿整个更新后的课程。抽象、分解、模式识别和算法设计现已明确融入每个主题，从数据表示到编程范式。在 AS1 考试中，考生将遇到需要从问题情境中抽象信息并设计解决方案轮廓的题目。
For example, a question might describe a real‑world system and ask the student to identify appropriate data structures and justify their decision. This higher‑order thinking is intended to bridge the gap between theoretical knowledge and practical coding.
例如，一道题目可能描述一个现实世界系统，并要求学生确定合适的数据结构并论证其决策。这种高阶思维旨在弥合理论知识与实践编码之间的差距。
8. Inclusion of Cybersecurity and Ethical Themes | 纳入网络安全与伦理主题
Reflecting the growing importance of digital safety, the 2026 specification integrates cybersecurity topics into several units. In AS1, students need to understand common threats such as SQL injection, phishing, and denial‑of‑service attacks, and explain basic countermeasures like input sanitisation and encryption.
为反映数字安全日益增长的重要性，2026 年大纲将网络安全主题整合到多个单元中。在 AS1 中，学生需要了解常见的威胁，如 SQL 注入、网络钓鱼和拒绝服务攻击，并解释基本的对策，如输入净化和加密。
Ethical implications of technology, including algorithmic bias, data privacy, and the environmental impact of server farms, are now examinable. Short‑answer questions may ask candidates to discuss the ethical trade‑offs in a given scenario, applying frameworks like the British Computer Society (BCS) Code of Conduct.
技术的伦理影响，包括算法偏见、数据隐私和服务器农场对环境的影响，现在均属于可考内容。短答题可能会要求考生讨论特定情境中的伦理权衡，并应用如英国计算机学会（BCS）行为准则等框架。
9. Sample Assessment Material Trends | 样卷趋势分析
The 2026 specimen papers released by CCEA reveal several recurring themes. Firstly, there is a strong focus on reading and understanding pre‑written code, even if it is in an unfamiliar language (pseudocode is provided). Secondly, database‑related questions now require students to write SQL queries involving JOINs and aggregate functions, not just simple SELECTs.
CCEA 发布的 2026 年样卷揭示了几个反复出现的主题。首先，非常注重阅读和理解预先写好的代码，即使它使用的是不熟悉的语言（会提供伪代码）。其次，与数据库相关的问题现在要求学生编写涉及 JOIN 和聚合函数的 SQL 查询，而不仅仅是简单的 SELECT。
Thirdly, algorithm questions are more context‑driven. Instead of merely dry‑running a bubble sort, candidates may be asked to compare its efficiency with a quicksort in a specific dataset size scenario. Trace tables are often combined with efficiency analysis.
第三，算法问题更加情境驱动。考生不再只是枯燥地模拟冒泡排序，而是可能被要求比较在特定数据集规模场景下其与快速排序的效率。跟踪表常与效率分析结合出现。
The mark schemes also indicate that concise, technical language is rewarded; vague answers lose marks.
评分方案还表明，简洁、技术性的语言能够得分；模糊的答案会失分。
10. Preparation Strategies for 2026 Success | 2026 年成功备考策略
To thrive under the new format, students should adopt a proactive learning approach. Firstly, hands‑on programming practice in Python or C# is non‑negotiable – aim to complete at least two mini‑projects before starting the official NEA. Use version control from day one to build the habit.
要想在新的形式下取得成功，学生应采取主动的学习方法。首先，使用 Python 或 C# 进行动手编程练习是必须的——在开始正式的 NEA 之前，至少完成两个小项目。从一开始就使用版本控制来养成习惯。
Secondly, regularly attempt specimen questions under timed conditions. Pay special attention to 'explain' and 'justify' prompts, as these map to the higher AO3 marks. Create revision notes that link a theoretical concept to a practical code example.
其次，在有时间限制的条件下定期试做样题。特别注意“解释”和“论证”类提示，因为这些对应着更高的 AO3 分值。制作复习笔记，将理论概念与实际代码示例联系起来。
Finally, stay updated with the official CCEA Computer Science microsite, where additional resources and exemplar materials are published. Join study groups or online forums to discuss difficult topics like recursion or Big O notation.
最后，保持对 CCEA 计算机科学官方微站的关注，那里会发布额外的资源和范例材料。加入学习小组或在线论坛，讨论递归或大 O 表示法等困难主题。
11. Conclusion | 结语
The 2026 CCEA AS Computer Science examination represents an evolution rather than a revolution, but the cumulative effects of language standardisation, enhanced NEA requirements, and a stronger emphasis on computational thinking will require precise preparation. By embracing the changes early, students can turn them into an advantage and build a solid foundation for A2 studies.
2026 年 CCEA AS 计算机科学考试是演变而非革命，但语言标准化、增强的 NEA 要求以及对计算思维的更加强调所带来的累积效应将要求精确的备考。通过尽早接受这些变化，学生可以将其转化为优势，并为 A2 学习打下坚实基础。
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