произвел работы на сумму

Выражение встречается в следующем контексте:

Разработчик произвел работ по реализации веб проекта на сумму

Спасибо большое.

P.S. эти "работы" просто испытание какое-то. Неужели их надо переводить как WORKS как встречается иногда в русских переведенных договорах?

http://www.opsi.gov.uk/si/si1991/uksi_19912680_en_1.htm

http://www.opsi.gov.uk/si/si1991/Uksi_19912680_en_7.htm#mdiv25

http://www.opsi.gov.uk/si/si1991/Uksi_19912680_en_6.htm#mdiv20

...
(b) if awarding the contract on the basis of the offer which is the most economically advantageous, taken any such explanation into account in assessing which is the most economically advantageous offer,

and, in considering that explanation, the contracting authority may take into account explanations which justify the offer on objective grounds including the economy of the construction method, the technical solutions suggested by the contractor or the exceptionally favourable conditions available to the contractor for the carrying out of the works or the originality of the works proposed by the contractor.
...
(8) For the purposes of this regulation an "offer" includes a bid by one part of a contracting authority to carry out work or works for another part of the contracting authority when the former part is invited by the latter part to compete with the offers sought from other persons.
...
2) A contracting authority shall prepare a record in relation to each public works contract awarded by it specifying-

(a) the name and address of the contracting authority;

(b) the work or works to be carried out under the contract and the value of the consideration to be given under it;

(c) the names of the persons whose offers were evaluated in accordance with regulation 20 and, where the contracting authority has used the restricted or negotiated procedure, the reasons for their selection;

(d) the names of the persons who were unsuccessful pursuant to regulation 11(7), 12(4), 12(5), 13(7) or 13(8);

(e) the name of the person to whom the contract was awarded and the reasons fo r having awarded the contract to him;

(f) if known to the contracting authority, the works under the contract which the person to whom the contract has been awarded intends to sub-contract to another person;

(g) in the case of a contracting authority which used the negotiated procedure, which of the circumstances specified in regulation 10(2) constituted the grounds for using that procedure.
...
(2) Paragraph (1) above applies to a contract which would be a public works contract if the subsidised body were a contracting authority and which is for the carrying out of any of the activities specified in Schedule 1 as are included in Group 502 or for the carrying out of building work for hospitals, facilities intended for sports, recreation and leisure, school and university building or buildings for administrative purposes.
...
Public housing scheme works contracts
24. -

(1) For the purpose of seeking offers in relation to a public housing scheme works contract, where the size and complexity of the scheme and the estimated duration of the works involved require that the planning of the scheme be based from the outset on a close collaboration of a team comprising representatives of the contracting authority, experts and the contractor, a contracting authority may, except as indicated in the following paragraphs, depart from the provisions of these Regulations insofar as it is necessary to do so to select the contractor who is most suitable for integration into the team.
...
Sub-contracting the work or works to be carried out under a public works concession contract
26. -

(1) A contracting authority seeking offers in relation to a public works concession contract shall either-

(a) include in the invitation to tender for, or to apply to be selected to tender for or to negotiate, the concession contract a request that the applicant specify whether he would intend, if awarded the concession contract, to sub-contract to persons who are not affiliated to him any of the work or works to be carried out under the concession contract and, if so, how much as a proportion of the value of such work or works would be so sub-contracted, or

(b) require as a term of the concession contract-
(i) that the concessionaire sub-contract to persons who are not affiliated to the concessionaire some or all of the work or works to be carried out under the concession contract, and
(ii) that the amount of the works so sub-contracted be not less than 30%, or such higher percentage as may be specified in the contract at the option of the contracting authority or the concessionaire, of the value of the consideration which the contracting authority would expect to give for the carrying out of the work or works if it did not grant a concession.