There are two main types of specification: performance specification and conformance specification (sometimes called prescriptive or technical specifications).
Performance specifications have following features:
- Focus on outputs
- Set out result to be achieved
- The 'what', not the 'how'
- Give supplier flexibility to present solutions that the buyer may not have considered Reference:
LO 1, AC 1.1

In order to form a contract to come into being, there are five conditions:
- Offer
- Acceptance
- Consideration
- Intention to be legally bound
- Capacity to contract
Reference:
LO 1, AC 1.2

One-off contracts are used where a supplier is only needed for a single activity unlikely to be repetitive, and where the need of the buyer is concrete and finite. Among the answers, only construction for power plant is one-off since the work is non-repetitive and the need is clearly defined.
A framework agreement is an agreement between one or more businesses or organisations, "the purpose of which is to establish the terms governing contracts to be awarded during a given period, in particular with regard to price and, where appropriate, the quantity envisaged".
A Commercial Lease Agreement is a contract used when renting business property to or from another individual or company. It gives the tenant (or renter) the right to use the property for business purposes during the term of the lease in exchange for payment to the landlord.
A franchise agreement is a legally binding document that outlines a franchisor's terms and conditions for a franchisee. Every franchise is governed by these terms, which are generally outlined in a written agreement between both parties.
Reference:
LO 1, AC 1.3

The key features, advantages and disadvantages of standard terms are summarised below:
- Form: Concise, generic and designed to be attached to purchase or sales orders
- Non-negotiable
- Ineffective terms: may be replaced by implied terms or national legal code rules, or subject to court 'balance of interest' judgement.
- Advantages: Basic contractual protection for most common circumstances; Avoid having to create new contract for repeat business.
- User friendly
- Usage: Low value, low risk, repetitive transactions
- Coverage: Definitions, relationship to other contracts, formation of the contract, order of precedence, price, invoicing and payment, specification, legal compliance, warrantee and liability, ownership and risk, intellectual property, data management and ethics.
- Disadvantages: Does not allow for specific circumstances; Risk for creating battle of the forms; Can create contractual uncertainty if used with purchase orders under call-off contracts.
Reference:
LO 3, AC 3.1

BS 7373-1:2001 Product specifications. Guide to preparation gives guidance on layout, preparation and management. The subject has been treated in a generic way and guidance can be used in the preparation of all types.
BS 5864:2019 is the standard for installation and maintenance of gas-fired ducted air heaters of rated heat input not exceeding 70 kW net (2nd and 3rd family gases). Specification BS 5975:2019 is the standard for code of practice for temporary works procedures and the permissible stress design of falsework.
BS EN 60601-1-11:2015 is the standard for medical electrical equipment. General requirements for basic safety and essential performance. Collateral Standard: Requirements for medical electrical equipment and medical electrical systems used in the home healthcare environment.
Reference:
- BSI website
- CIPS study guide page 90-92
LO 2, AC 2.1