PTE Academic Write Essay · Opinion (agree or disagree)

Mandating Open Source Digital Twins for Municipal Infrastructure

A high-scoring sample essay with the plan behind it, the vocabulary that lifts it, and what the scoring traits reward.
  • 267 words
  • Opinion (agree or disagree)
  • advanced
  • 20 minutes

The prompt

Municipal governments are using digital twin platforms to model transportation network changes, yet the proprietary nature of many digital twin technologies raises concerns about vendor dependency and data ownership. To what extent do you agree that municipalities should mandate open-source digital twin platforms for public infrastructure planning?

20 minutes. Write 200 to 300 words. A BandLadder practice prompt, not a recalled exam question.

Opinion (agree or disagree)

Plan before you write

  1. 1

    Position

    Municipalities should mandate open-source digital twin platforms to ensure long-term autonomy and transparent governance of public data.

  2. 2

    Paragraph 2

    Open-source platforms prevent vendor lock-in and provide cost-effective flexibility for local governments.

  3. 3

    Paragraph 3

    Standardized, transparent data structures facilitate collaborative urban planning and protect municipal data sovereignty.

  • →State a clear position in the last sentence of the introduction and keep it to the end.
  • →Two body paragraphs that each give one reason for that position, with an example.
  • →A partial position is fine if it is stated precisely; a position that drifts is what caps task response at 6.

Model answer

Sample essay

High-scoring sample267 words. Use the structure and vocabulary, not the sentences: PTE flags memorised templates.

The integration of digital twin technology into urban planning offers significant potential for optimizing transportation networks. However, the reliance on proprietary software creates substantial risks regarding vendor dependency and data ownership. I strongly agree that municipalities should mandate open-source digital twin platforms to safeguard public interest and ensure sustainable infrastructure management.

Adopting open-source frameworks effectively mitigates the risk of vendor lock-in, which often forces governments into restrictive, long-term contracts. When a city relies on proprietary systems, it becomes beholden to a single provider for updates and technical support, often at exorbitant costs. For instance, if a vendor ceases operations or significantly raises licensing fees, the municipality faces a critical technological crisis. Open-source solutions allow cities to maintain control over their software stack, enabling internal teams or third-party developers to customize tools without being tethered to a private entity’s roadmap.

Furthermore, mandating open standards ensures that public data remains transparent and interoperable. Proprietary systems frequently sequester data within closed ecosystems, complicating the integration of information from different municipal departments. By utilizing open-source platforms, cities can standardize data formats, fostering a more collaborative environment for urban planning. A pertinent example is the City of Helsinki’s use of open data models, which has enabled seamless cooperation between transit authorities and private researchers, leading to more efficient traffic flow simulations that would be impossible within a siloed, proprietary environment.

In conclusion, while proprietary tools may offer convenience, the long-term strategic risks they pose to public infrastructure are unacceptable. By championing open-source digital twins, municipal governments can maintain data sovereignty, reduce financial vulnerability, and foster a transparent, efficient approach to urban development.

Scoring traits

Why this scores well

This response scores highly on linguistic range and formal register through the use of precise, topic-specific vocabulary. The most common mistake for this prompt is failing to address the specific tension between proprietary software and public data ownership, instead writing a generic essay about technology.

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8 words

Vocabulary from the essay

  • vendor lock-in

    a situation where a customer is dependent on one vendor

  • beholden

    owing thanks or having a duty to someone

  • tethered

    restricted or limited by a specific connection

  • interoperable

    able to exchange and use information between systems

  • sequester

    to isolate or hide something from public view

  • siloed

    isolated from other parts of an organization

  • sovereignty

    the authority or power to govern oneself

  • mitigates

    makes something less severe, serious, or painful

See also the Write Essay guide.

Frequently asked questions

How long should a PTE essay be?+

Between 200 and 300 words; outside that range the form score drops to zero. This sample is 267 words, written for the 20-minute limit.

What type of essay is this?+

Opinion (agree or disagree). State a clear position in the last sentence of the introduction and keep it to the end.

What does PTE reward in the essay?+

This response scores highly on linguistic range and formal register through the use of precise, topic-specific vocabulary. The most common mistake for this prompt is failing to address the specific tension between proprietary software and public data ownership, instead writing a generic essay about technology.

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