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Work volume calculations are essential for project cost estimation. Many projects, such as the Laboratory Building of the Faculty Engineering at Tanjungpura University, calculate work volumes conventionally. Conventional calculation considered less efficient and prone to errors. Building Information Modeling (BIM) provides a solution that produces more accurate and efficient calculations than conventional methods. This research aims to compare structural work volume results produced by BIM using Autodesk Revit against conventional methods and project’s BOQ. This research also describes the benefits and challenges of BIM implementation based on the researcher’s experience applying BIM with Autodesk Revit in work volume calculation. The comparison between BIM and conventional method shows a maximum difference of 2% across all work items. Meanwhile, the comparison between BIM and the BOQ shows significant differences: 81% in column formwork area, 24% in grade beam/beam concrete volume, 25% in column reinforcement weight, 25% in steel beam weight, and 10% in the steel plate weight. This research proves that BIM implementation produces more accurate and efficient calculations and serves as an effective BOQ cross-check tool. Based on the researcher’s experience in implementing BIM with Autodesk Revit, challenges found in procurement aspects, modeling aspects, and model dependency on reference drawings.    

E-Tendering is an electronic-based procurement method that integrates all parties involved in construction projects through a digital platform, simplifying communication, document exchange, and transactions from the initial stage to project completion. The primary objective of implementing E-Tendering in the construction sector is to improve efficiency and transparency in the procurement process of goods and services. However, construction service providers often face obstacles in E-Tendering, such as limited technological proficiency, administrative errors that may disqualify bids, and technical issues like internet connectivity and platform system reliability. Therefore, this research aims to identify the barriers and level of understanding of E-Tendering among construction service providers in Surabaya. A total of 51 respondents were selected using snowball sampling, based on their participation in the E-Tendering system. Data processing in this study employed a quantitative approach using the Fuzzy AHP method to analyze the criteria and sub-criteria related to understanding and obstacles in participating in electronic construction service tenders (E-Tendering). The results of the analysis of service providers’ understanding of the E-Tendering system using the AHP method showed a λmax value of 9.09, a Consistency Index (CI) of 0.01, and a Consistency Ratio (CR) of 0.007. The CR value, which is far below the threshold of 0.10, indicates that the respondents’ assessments are consistent, meaning that the pairwise comparison results of the nine criteria can be considered valid and reliable.

This study examines the legal validity of direct appointment construction consultancy contracts between state-owned enterprises and their subsidiaries following the implementation of Indonesia's Job Creation Law. The research addresses critical questions regarding the formal legal mechanisms governing long-term unit-price framework agreements and their continued enforceability under amended procurement regulations. Employing a normative-jurisprudential methodology, the study systematically analyzes primary legal sources, including statutory provisions, government regulations, and corporate governance frameworks, alongside secondary legal materials and doctrinal commentaries. The analysis reveals that pre-Omnibus Law direct appointments complied with civil law contract validity requirements and sector-specific procurement regulations under Law No. 2/2017. Transitional provisions and the non-retroactivity principle preserved the enforceability of framework agreements executed prior to the Job Creation Law's enactment, while administrative amendments extending contract terms remained lawful under existing civil code provisions. The study demonstrates that direct appointment mechanisms achieve legal justification through constitutional mandates and legislative hierarchy, while providing utilitarian benefits through enhanced procurement efficiency and deployment of specialized technical expertise. The findings contribute to scholarly discourse on state-owned enterprise governance by elucidating how omnibus legislative reforms interact with contract doctrine and corporate governance norms, emphasizing the critical importance of robust conflict-of-interest safeguards in preventing procedural formalism from overshadowing substantive public interest outcomes.

The contractual relationship between government entities (PA/KPA/PPK) and construction service providers in procurement activities is complex, as it intersects with both public and private law. Government procurement contracts for construction projects are often structured through a tender process, where service providers must compete to win the contract. Once the provider is selected, a legal agreement is formed, which regulates the roles, responsibilities, and obligations of the parties involved. This agreement is typically outlined in a contract document that serves as a formal, legally binding commitment. In civil law, such contracts are typically governed by private law principles, which include contracts, obligations, and liabilities. However, the nature of government procurement contracts adds a unique element of public law, particularly administrative and criminal law. The government’s involvement in these contracts introduces a dual legal framework that governs the relationship between the parties. On one hand, the contract is influenced by the state’s regulatory powers and administrative authority, ensuring compliance with legal standards and public interests. On the other hand, it is also subject to private law principles, as the government enters into agreements with construction providers just like any other business transaction. This mixed legal framework (or "mixed law") creates a distinctive legal relationship, where elements of public law, such as administrative regulations and oversight, coexist with private law principles, such as those governing contract enforcement and dispute resolution. The contract, which is a Keputusan Tindakan Administrasi Negara (KTUN), remains a civil law act, despite its public law foundation. This hybrid nature of government contracts ensures that both public and private law aspects are considered in the process, which can sometimes lead to legal complexities and challenges in the implementation and enforcement of these contracts.

This journal examines the factors that have the potential to cause delays in the implementation of the Dempsey Hill residential housing construction project, North Citraland, Surabaya. Projects managed by CV. Tirta Kusuma has a target of completion in 10 months, but there are indications of delays that affect the schedule and costs. This study aims to identify and analyze the dominant factors causing delays, such as project management, material procurement, and human resources. The methods used include observation, questionnaire distribution, and literature study. The results of this analysis are expected to provide recommendations to improve time management, resource efficiency, and control of future construction projects. The results of data analysis in this study indicate that project delays are primarily caused by material delays and errors in work execution, as concluded based on the results of factor analysis.